TM 1-1270-476-30
2-28
2-6. SEALING COMPOUNDS AND ADHESIVES REMOVAL, APPLICATION, CURING, AND
OUTGASSING (cont)
11. SEALING COMPOUND-MOLDING
WARNING
ACETONE
• Flammable, toxic, irritating. Can cause
breathing problems, eye damage.
• Don’t: Use near flame or sparks, let it get on
skin, or breathe vapors.
• Do: Use in well-ventilated area, close
containers when not using. Wear acid-type
safety goggles, rubber gloves, and rubber
apron.
• If it contacts skin or eyes, wash affected
areas with running water. Get medical help
at once.
• If you experience any breathing problems,
get to fresh air at once.
WARNING
SEALING COMPOUND - MOLDING
• Flammable, toxic, can cause breathing
problems.
• Don’t: Use near flames or sparks or breathe
vapors.
• Do: Use in well-ventilated area, close
containers when not using.
• If you experience shortness of breath, or
other breathing problems, get to fresh air at
once.
REMOVAL
a. Remove cured compound by cutting or
scraping away with knife, then wipe with
cloth and acetone.
b. Blow dry with clean air or nitrogen.
APPLICATION (Work life is 2 hours at 67 to 87°F.)
c. Wipe surface with cloth and acetone.
d. Blow dry with clean air or nitrogen.
e. Prime surface (10 above).
f. Prepare mold.
NOTE
Apply molding compound to primed surface
not more than 18 hours after priming.
g. Mix 10 parts base to 1 part curing agent in a
clean glass, metal, or paper container by
hand.
NOTE
Scrape the walls and bottom of mixing
container to ensure the material in these areas
is completely blended in the mixture.
h. Pour mixture into the mold.
CURING
NOTE
Cure temperature should not exceed 130°F.
i. Cure for not less than 16 hours at 70°F, 3
hours at 100°F, or 2 hours at 120°F.
j. Remove mold after curing.
END OF TASK
